1 /*============LICENSE_START=======================================================
2 * oom-truststore-merger
3 * ================================================================================
4 * Copyright (C) 2020 Nokia. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 * ============LICENSE_END=========================================================
20 package org.onap.oom.truststoremerger.common;
23 import java.io.FileOutputStream;
24 import java.nio.file.Files;
25 import org.onap.oom.truststoremerger.merger.exception.CreateBackupException;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
29 public final class BackupCreator {
31 private static final Logger LOGGER = LoggerFactory.getLogger(BackupCreator.class);
32 private static final String BACKUP_EXTENSION = ".bak";
34 private BackupCreator() {
37 public static void createBackup(File file) throws CreateBackupException {
38 LOGGER.debug("Create backup of file: {}", file.getPath());
39 String backupFilePath = file.getAbsolutePath() + BACKUP_EXTENSION;
40 try (FileOutputStream fileOutputStream = new FileOutputStream(backupFilePath)) {
41 Files.copy(file.toPath(), fileOutputStream);
42 } catch (Exception e) {
43 LOGGER.error("Cannot create backup of file: {} ", file.getPath());
44 throw new CreateBackupException(e);
46 LOGGER.debug("Backup was successfully created in: {}", backupFilePath);